"You didn't come in." I don't state it as a question, but it is one. Not that I would have wanted him to come in, it's just surprising that he didn't. "You didn't invite me in." Huh. I never knew serial killers had such manners. "Are you a vampire?" He blinks. "Excuse me?" "Can't come in until they're invited, but once they are, they'll never leave."